Annual report pursuant to Section 13 and 15(d)

Note 4 - Concentrations (Details Textual)

v3.20.2
Note 4 - Concentrations (Details Textual)
12 Months Ended
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Property, Plant and Equipment, Net, Ending Balance $ 5,109,988 $ 5,413,241
MEXICO    
Property, Plant and Equipment, Net, Ending Balance $ 1,686,209 $ 1,406,546
Revenue Benchmark [Member] | Customer Concentration Risk [Member]    
Number of Major Customers 2 2
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Two Customers [Member]    
Concentration Risk, Percentage 30.00% 29.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]    
Number of Major Customers 2 2
Concentration Risk, Percentage 25.00% 28.00%